Analysis
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max time kernel
140s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
12-02-2022 09:19
Static task
static1
Behavioral task
behavioral1
Sample
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe
Resource
win10v2004-en-20220112
General
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Target
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe
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Size
216KB
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MD5
4e1e391b40cf61b65c981479577927be
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SHA1
f199b4307989649705822df63afda1255e003fbb
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SHA256
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b
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SHA512
6d0f1a00a7f1e142b4608edbea65c1d8cbdd17245a98250d7678038e8f2f83645d320ccebbb6e7d69a7832315899431ef8a92088ba939acdd67a1dcbf3347f82
Malware Config
Signatures
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Sakula Payload 4 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe family_sakula C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe family_sakula behavioral2/memory/208-132-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula behavioral2/memory/3040-133-0x0000000000400000-0x0000000000420000-memory.dmp family_sakula -
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
suricata: ET MALWARE SUSPICIOUS UA (iexplore)
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suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1
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Executes dropped EXE 1 IoCs
Processes:
MediaCenter.exepid process 3040 MediaCenter.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe -
Drops file in Windows directory 3 IoCs
Processes:
svchost.exeTiWorker.exedescription ioc process File opened for modification C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Microsoft\Windows\DeliveryOptimization\State\keyValueLKG.dat svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotifyIcon.exedescription ioc process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotifyIcon.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotifyIcon.exe -
Modifies data under HKEY_USERS 49 IoCs
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCdnBytes = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "6.603825" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "5.405590" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyLanBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrCnt = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\SwarmCount = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4300" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Settings svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthID = "2" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\KVFileExpirationTime = "132893076235628092" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\InternetConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkUsageBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MonthlyUploadRestriction = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CPUpct = "24.986687" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DODownloadMode = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyLinkLocalBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PeerInfoCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LinkLocalConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\FrDownloadRatePct = "90" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\LANConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\GroupConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\BkDownloadRatePct = "45" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateFrBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyRateBkCnt = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\Geo_EndpointFullUri = "https://geo.prod.do.dsp.mp.microsoft.com/geo" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CDNConnectionCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\PriorityDownloadCount = "0" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\GeoVersion_EndpointFullUri = "https://geover.prod.do.dsp.mp.microsoft.com/geoversion" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\CacheSizeBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UplinkUsageBps = "0" svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization svchost.exe Key created \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyCacheHostBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownloadMonthlyGroupBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\NormalDownloadPendingCount = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\MemoryUsageKB = "4092" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config\DownloadMode_BackCompat = "1" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadMonthlyInternetBytes = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\DownlinkBps = "0" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadRatePct = "100" svchost.exe Set value (int) \REGISTRY\USER\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Usage\UploadCount = "0" svchost.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
TiWorker.exe0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exedescription pid process Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeIncBasePriorityPrivilege 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe Token: SeBackupPrivilege 2612 TiWorker.exe Token: SeRestorePrivilege 2612 TiWorker.exe Token: SeSecurityPrivilege 2612 TiWorker.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exedescription pid process target process PID 208 wrote to memory of 3040 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe MediaCenter.exe PID 208 wrote to memory of 3040 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe MediaCenter.exe PID 208 wrote to memory of 3040 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe MediaCenter.exe PID 208 wrote to memory of 2416 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe cmd.exe PID 208 wrote to memory of 2416 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe cmd.exe PID 208 wrote to memory of 2416 208 0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe"C:\Users\Admin\AppData\Local\Temp\0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:208 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
PID:3040 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0a6a28e2e8ab57a5f3abf2544b869aa453988f4a96e2533f8aa919f6b09efe2b.exe"2⤵PID:2416
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- Runs ping.exe
PID:3956
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C:\Windows\system32\MusNotifyIcon.exe%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 131⤵
- Checks processor information in registry
PID:3240
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k NetworkService -p1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
PID:3324
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C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2612
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
717eb96e377c99c78e940aafaf9219b3
SHA14de535abba28b93147d9c08867a716752a9822f5
SHA256909157509a5ba1085eda6452d231ade0515268012618232aaa00526fd4473c5c
SHA512d2db7c340d74d98a8ef35ca321dcfa333d748a87ea63638d8f731d93f672b9bf28c23e73b76174f732524470c96f9b025da5caf2a6a7653101518a0deac6dd11
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C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeMD5
717eb96e377c99c78e940aafaf9219b3
SHA14de535abba28b93147d9c08867a716752a9822f5
SHA256909157509a5ba1085eda6452d231ade0515268012618232aaa00526fd4473c5c
SHA512d2db7c340d74d98a8ef35ca321dcfa333d748a87ea63638d8f731d93f672b9bf28c23e73b76174f732524470c96f9b025da5caf2a6a7653101518a0deac6dd11
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memory/208-132-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB
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memory/3040-133-0x0000000000400000-0x0000000000420000-memory.dmpFilesize
128KB